Reverse BMI Calculator

Quickly reverse calculate BMI to find the height or weight that matches a target BMI. Clean, fast, and mobile-first tool for BMI reverse calculation and planning.

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Try the calculator below

Choose mode, enter values, and press Calculate.

Reverse BMI Calculator

Two modes: find height from known weight + target BMI, or find weight from known height + target BMI.

Enter weight in kg or lb.
Common BMI values: 18.5–24.9 (normal weight), 25–29.9 (overweight).
Results update below
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FAQ

BMI (Body Mass Index) is a simple ratio of weight to height used to categorize weight status. It is not a direct measure of body fat.

Reverse BMI uses the standard BMI formula to compute a theoretical height or weight. Individual body composition varies—use results as a guide, not a diagnosis.

Yes — it can help with basic planning. Always consult a healthcare professional before making major changes to diet or exercise based on BMI targets.

Who is this website for

This site is for people who want a straightforward reverse BMI calculator to estimate height or weight for a target BMI. It’s useful for health-savvy users, educators, coaches, and developers who need quick BMI reverse calculation without clutter.

Why this website was created

Created to provide a focused, easy-to-use reverse BMI calculator for users who need quick bmi reverse calculation or a bmi reverse calculator for height and weight. No signup, no tracking — just fast tools.

Medical disclaimer

This tool provides simple arithmetic calculations only and is not medical advice. It does not consider body composition, medical conditions, or individual factors. For personalized medical guidance, consult a qualified healthcare professional.